Seeing double: 1 in 30 babies born in US is a twin

Monday, April 2, 2012 - 15:30 in Health & Medicine

Women having children at older ages and the growing availability of fertility treatments has led to a marked increase in the birth of twins: In 2009, one in every 30 babies born in the United States was a twin compared with one in every 53 in 1980.

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